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Finding the Fourth Proportional to 279,802.42, 385,853.03 and 177,650.54

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Solution

The fourth proportional to 279,802.42, 385,853.03 and 177,650.54 is: 244,983.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,802.42 : 385,853.03 = 177,650.54 : x
  2. Step 2: Convert to fraction form
    279,802.42/385,853.03 = 177,650.54/x
  3. Step 3: Cross multiply
    279,802.42x = 385,853.03 × 177,650.54
  4. Step 4: Simplify right side
    279,802.42x = 68,546,998,435.76
  5. Step 5: Solve for x
    x = 68,546,998,435.76/279,802.42
  6. Step 6: Final answer
    x = 244,983.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.